51981660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{911}}^1$

素因数の和:1243

約数の個数: 72

約数和(自身を含む): 158348736

約数和(自身を除く): 106367076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 317, 634, 911, 951, 1268, 1585, 1822, 1902, 2733, 2853, 3170, 3644, 3804, 4555, 4755, 5466, 5706, 6340, 8199, 9110, 9510, 10932, 11412, 13665, 14265, 16398, 18220, 19020, 27330, 28530, 32796, 40995, 54660, 57060, 81990, 163980, 288787, 577574, 866361, 1155148, 1443935, 1732722, 2599083, 2887870, 3465444, 4331805, 5198166, 5775740, 8663610, 10396332, 12995415, 17327220, 25990830, 51981660]

約数ペア:

[(1, 51981660), (2, 25990830), (3, 17327220), (4, 12995415), (5, 10396332), (6, 8663610), (9, 5775740), (10, 5198166), (12, 4331805), (15, 3465444), (18, 2887870), (20, 2599083), (30, 1732722), (36, 1443935), (45, 1155148), (60, 866361), (90, 577574), (180, 288787), (317, 163980), (634, 81990), (911, 57060), (951, 54660), (1268, 40995), (1585, 32796), (1822, 28530), (1902, 27330), (2733, 19020), (2853, 18220), (3170, 16398), (3644, 14265), (3804, 13665), (4555, 11412), (4755, 10932), (5466, 9510), (5706, 9110), (6340, 8199)]